Andrew Barss wrote in message...

I needed additional 12" for my Grizzly lathe. I'm 6'6" tall. I took a
6" x 6"-8 foot pressure treated and cut it into 4 pieces.Two foot
pieces are stacked on each end.I used a 2" x 6" to create an "H"
frame. Mortise joint cut into middle of 6 x 6's before bolting them
together. Ten inch (6 total) carriage bolts hold the stacks together.
This gives foot room in front of lathe, is VERY heavy for stability, 2
x 6 is off the floor for clean-up. [-]======[-]. A floor mat works
between legs of "H". I had to use one layer of scrap 3/4" plywood
under 6 x 6 to get final height.

Bill in WNC mountains